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    CVE-2006-0021

    Microsoft Windows XP SP1 and SP2, and Server 2003 up to SP1, allows remote attackers to cause a denial of service (hang) via an IGMP packet with an invalid IP option, aka the "IGMP v3 DoS Vulnerability."

    Published:Feb 14, 2006
    Last Modified:Apr 16, 2026
    EPS:Feb 14, 2006
    EPSS Score:0.69661
    CVSS Score:7.8

    Affected Products

    Vendor
    Microsoft
    Product
    Windows 2003 Server
    Vendor
    Microsoft
    Product
    Windows Xp

    Exploits

    https://www.exploit-db.com/exploits/1599https://www.exploit-db.com/exploits/1603

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    CVE-2015-2363 (CVSS 7.2) — win32k.sys in the kernel-mode drivers in Microsoft Windows Server 2003 SP2 and R2 SP2, Windows Vista SP2, Wind…
    CVE-2015-2365 (CVSS 7.2) — win32k.sys in the kernel-mode drivers in Microsoft Windows Server 2003 SP2 and R2 SP2, Windows Vista SP2, Wind…
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    References

    http://secunia.com/advisories/18853
    http://securitytracker.com/id?1015629
    http://www.kb.cert.org/vuls/id/839284
    http://www.securiteam.com/exploits/5PP0T0KI0O.html
    http://www.securityfocus.com/archive/1/482658/30/4350/threaded
    http://www.securityfocus.com/bid/16645
    http://www.us-cert.gov/cas/techalerts/TA06-045A.html
    http://www.vupen.com/english/advisories/2006/0576
    https://docs.microsoft.com/en-us/security-updates/securitybulletins/2006/ms06-007
    https://exchange.xforce.ibmcloud.com/vulnerabilities/24489
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1310
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1425
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1647
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1662
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A678
    https://www.exploit-db.com/exploits/1599
    http://secunia.com/advisories/18853
    http://securitytracker.com/id?1015629
    http://www.kb.cert.org/vuls/id/839284
    http://www.securiteam.com/exploits/5PP0T0KI0O.html
    http://www.securityfocus.com/archive/1/482658/30/4350/threaded
    http://www.securityfocus.com/bid/16645
    http://www.us-cert.gov/cas/techalerts/TA06-045A.html
    http://www.vupen.com/english/advisories/2006/0576
    https://docs.microsoft.com/en-us/security-updates/securitybulletins/2006/ms06-007
    https://exchange.xforce.ibmcloud.com/vulnerabilities/24489
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1310
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1425
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1647
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1662
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A678
    https://www.exploit-db.com/exploits/1599

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High